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authorPaul Mundt <lethal@linux-sh.org>2007-11-09 13:45:42 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-01-28 13:18:41 +0900
commit4690bdc7c6e4f18fb58350ccde40df5fcd85a6d9 (patch)
treebef3ae2a5e2bae9d50d450fe094da48bf30fcc5e /arch/sh/Kconfig.cpu
parent114f132975ae8db3caa0c3420dc1083bae8d3757 (diff)
downloadvexpress-lsk-4690bdc7c6e4f18fb58350ccde40df5fcd85a6d9.tar.gz
sh: Consolidate CPU features in Kconfig.cpu.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/Kconfig.cpu')
-rw-r--r--arch/sh/Kconfig.cpu102
1 files changed, 102 insertions, 0 deletions
diff --git a/arch/sh/Kconfig.cpu b/arch/sh/Kconfig.cpu
new file mode 100644
index 00000000000..9f329dff88b
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+++ b/arch/sh/Kconfig.cpu
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+menu "Processor features"
+
+choice
+ prompt "Endianess selection"
+ default CPU_LITTLE_ENDIAN
+ help
+ Some SuperH machines can be configured for either little or big
+ endian byte order. These modes require different kernels.
+
+config CPU_LITTLE_ENDIAN
+ bool "Little Endian"
+
+config CPU_BIG_ENDIAN
+ bool "Big Endian"
+
+endchoice
+
+config SH_FPU
+ bool "FPU support"
+ depends on CPU_HAS_FPU
+ default y
+ help
+ Selecting this option will enable support for SH processors that
+ have FPU units (ie, SH77xx).
+
+ This option must be set in order to enable the FPU.
+
+config SH_FPU_EMU
+ bool "FPU emulation support"
+ depends on !SH_FPU && EXPERIMENTAL
+ default n
+ help
+ Selecting this option will enable support for software FPU emulation.
+ Most SH-3 users will want to say Y here, whereas most SH-4 users will
+ want to say N.
+
+config SH_DSP
+ bool "DSP support"
+ depends on CPU_HAS_DSP
+ default y
+ help
+ Selecting this option will enable support for SH processors that
+ have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
+
+ This option must be set in order to enable the DSP.
+
+config SH_ADC
+ bool "ADC support"
+ depends on CPU_SH3
+ default y
+ help
+ Selecting this option will allow the Linux kernel to use SH3 on-chip
+ ADC module.
+
+ If unsure, say N.
+
+config SH_STORE_QUEUES
+ bool "Support for Store Queues"
+ depends on CPU_SH4
+ help
+ Selecting this option will enable an in-kernel API for manipulating
+ the store queues integrated in the SH-4 processors.
+
+config SPECULATIVE_EXECUTION
+ bool "Speculative subroutine return"
+ depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL
+ help
+ This enables support for a speculative instruction fetch for
+ subroutine return. There are various pitfalls associated with
+ this, as outlined in the SH7780 hardware manual.
+
+ If unsure, say N.
+
+config CPU_HAS_INTEVT
+ bool
+
+config CPU_HAS_MASKREG_IRQ
+ bool
+
+config CPU_HAS_IPR_IRQ
+ bool
+
+config CPU_HAS_SR_RB
+ bool
+ help
+ This will enable the use of SR.RB register bank usage. Processors
+ that are lacking this bit must have another method in place for
+ accomplishing what is taken care of by the banked registers.
+
+ See <file:Documentation/sh/register-banks.txt> for further
+ information on SR.RB and register banking in the kernel in general.
+
+config CPU_HAS_PTEA
+ bool
+
+config CPU_HAS_DSP
+ bool
+
+config CPU_HAS_FPU
+ bool
+
+endmenu